ERROR_EFS_SERVER_NOT_TRUSTED 0x8007177B

Error code 6011 · HRESULT 0x8007177B

WINDOWS

The server is not trusted for remote encryption operation.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_EFS_SERVER_NOT_TRUSTED is a Windows error code (system error 6011, returned as HRESULT 0x8007177B) reported by Windows. Its official message is: “The server is not trusted for remote encryption operation.”

How to fix ERROR_EFS_SERVER_NOT_TRUSTED

  1. Run the affected program as administrator (right-click → Run as administrator)
  2. Check permissions on the target resource: Properties → Security → your account
  3. Check Event Viewer → Windows Logs → Security for the matching audit entry

Related errors

ERROR_EFS_ALG_BLOB_TOO_BIGERROR_EFS_DISABLEDERROR_EFS_VERSION_NOT_SUPPORTERROR_EFS_NOT_ALLOWED_IN_TRANSACTIONERROR_DIR_EFS_DISALLOWEDERROR_BAD_RECOVERY_POLICYERROR_FILE_READ_ONLY

Source: Microsoft WinError.h

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